Self-cleaning device for conveying belt of underground belt conveyor

Abstract

A cleaning device is arranged at the bottom end of the turn-back position of the belt conveyor, a driving wheel of the device makes contact with a belt, linkage is achieved through movement of the belt, when the belt runs, the driving wheel drives an eccentric connecting rod to rotate, then a driven connecting rod is pushed, and the eccentric connecting rod is driven to rotate along with movement of the driven connecting rod. The connecting plate moves along with the belt, the connecting plate drives the flapping rod to swing through the hinging effect with the connecting rod, so that the turning-back position of the belt is flapped, the stand columns evenly arranged on the flapping rod can effectively increase the contact area with the belt, the flapping force on the belt is increased, and coal slime and sundries attached to the surface of the belt can be helped to fall off; the falling coal slime falls into the collecting shell below in the flapping process and then smoothly slides into the collecting frame through guiding of the guiding plate, the device utilizes the self-operation characteristic of the belt, an additional motor or a complex driving system is not needed, and the energy consumption and the maintenance cost of the device are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of belt conveyor equipment, specifically a self-cleaning device for underground belt conveyor belts. Background Technology

[0002] Underground belt conveyors play a vital role in material transportation in coal mining. However, during long-term operation, a large amount of coal dust, mud, rock debris, and other impurities accumulate on the belts. These impurities severely affect the normal operation of the belt conveyors. Especially during dust suppression operations in mining areas, coal is usually in a moist state, and coal sludge mixes with coal dust, easily adhering to the belt surface. These deposits not only increase the load on the belt but also cause excessive pressure on the belt during operation as dust gradually accumulates, leading to belt wear, fatigue, and even breakage. In addition, although existing scraper cleaning devices can clean impurities on the belt surface to some extent, the uneven structure of the belt surface or the strong stickiness of coal sludge, wet coal, and other substances adhering to the belt make it difficult for existing cleaning devices to effectively and thoroughly remove all accumulated dust. Especially for some stubborn deposits that are difficult to remove, the cleaning effect of scrapers is very limited. Brush cleaning devices cannot effectively clean adsorbed coal sludge, and the brush bristles are easily damaged, resulting in high maintenance costs. Utility Model Content

[0003] The purpose of this utility model is to provide a self-cleaning device for underground conveyor belts, in order to solve the problem that coal is usually in a wet state, and coal sludge and coal dust are mixed and easily adhere to the surface of the belt, increasing the load on the belt. At the same time, existing cleaning devices are difficult to effectively and thoroughly remove all accumulated dust, especially some stubborn deposits that are difficult to remove.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning device for an underground conveyor belt, disposed at the bottom end of the conveyor belt reversal point, comprising a collection shell, mounting plates, a drive wheel, and a cleaning device. The collection shell is a rectangular shell with an upward opening, disposed at the bottom end of the conveyor belt reversal point. L-shaped mounting plates are connected to the left and right ends of the collection shell, and drive wheels are respectively mounted on the vertical ends of the mounting plates, connected by positioning rods. The outer circumference of the drive wheels abuts against the bottom end of the belt reversal point. Cleaning devices are connected to the left and right sides of the top of the collection shell.

[0005] The cleaning device includes an eccentric connecting rod, a driven connecting rod, a connecting plate, a support column, and a beater. The eccentric connecting rod is connected to the positioning rod of the driving wheel. The other end of the eccentric connecting rod is hinged to the driven connecting rod. The top end of the driven connecting rod is hinged to the connecting plate. The length of the connecting plate is the same as the diameter of the opening slot of the collecting shell. The bottom end of the connecting plate is connected to the front and rear ends of ...

[0006] Preferably, the front end of the collecting shell is provided with a collecting groove.

[0007] Preferably, the collection shell is provided with a guide plate, which is obliquely arranged, with one end connected to the top of the collection shell and the other end connected to the bottom of the collection trough.

[0008] Preferably, the collection trough has a collection frame at its open end, with the bottom end of the collection frame located on the ground for collecting the coal slurry that slides off the guide plate.

[0009] Preferably, the contact end between the drive pulley and the belt is provided with a rubber outer ring, which is fitted onto the outer circumference of the drive pulley.

[0010] Preferably, the racket shaft is provided with a plurality of uprights evenly distributed in a geometric sequence to increase the contact area between the racket shaft and the bottom of the belt.

[0011] Preferably, the contact end between the column and the belt is set at an angle, and after rotation, it is aligned with the cut-off end of the handle.

[0012] Preferably, the racket handle and the upright are made of rubber.

[0013] Preferably, the positioning rod of the drive wheel is connected to a bearing seat at the contact end with the mounting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] A cleaning device is installed at the bottom of the belt conveyor's bend, and this device is not driven by a motor. The drive wheel of the device contacts the belt, and the movement of the belt enables linkage. When the belt is running, the drive wheel drives the eccentric connecting rod to rotate, which in turn pushes the driven connecting rod. As the driven connecting rod moves, the connecting plate also moves. The connecting plate, through its hinge with the connecting rod, drives the beater to swing, thereby beating the bend of the belt. The evenly spaced columns on the beater effectively increase the contact area with the belt, further increasing the beating force and helping to remove coal slime and debris adhering to the belt surface. The detached coal sludge will fall into the collection shell below during the beating process, and then slide smoothly into the collection frame under the guidance of the guide plate. The device utilizes the self-running characteristics of the belt, eliminating the need for an additional motor or complex drive system, which greatly reduces the energy consumption and maintenance costs of the equipment. The drive wheel of the device ensures the stability and durability of the cleaning effect through continuous contact with the belt. At the same time, the evenly distributed columns on the beater not only increase the contact area with the belt and improve the beating effect, but also ensure that the equipment remains highly efficient in cleaning even when the belt conveyor is running at high intensity, avoiding the negative impact of coal sludge accumulation on the operation of the belt conveyor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the cleaning device structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the column structure of this utility model.

[0019] In the diagram: 1. Collection shell; 2. Mounting plate; 3. Drive wheel; 4. Rubber outer ring; 5. Guide plate; 6. Collection frame; 7. Cleaning device; 701. Eccentric connecting rod; 702. Driven connecting rod; 703. Connecting plate; 704. Support column; 705. Patting arm; 706. Connecting rod; 707. Column. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figure 1-2This utility model provides an embodiment of a self-cleaning device for an underground conveyor belt, located at the bottom of the conveyor belt's turnaround point. It includes a collection housing 1, mounting plates 2, a drive wheel 3, and a cleaning device 7. The collection housing 1 is a rectangular shell with an upward-facing opening, positioned at the bottom of the conveyor belt's turnaround point. The collection housing 1 collects coal sludge or impurities falling from the conveyor belt, effectively collecting and storing them, and facilitating cleaning to prevent further impact on the working environment. L-shaped mounting plates 2 are connected to the left and right sides of the collection housing 1, providing support and fixation, and connecting the collection housing 1 and the drive wheel 3. The detached coal sludge is collected at the horizontal end of the mounting plate 2 after detachment, and then cleaned. The mounting plates 2 are positioned larger than the width of the belt and the same width as the supports on both sides of the belt conveyor, without occupying extra installation space. The vertical ends of the mounting plates 2 are each equipped with a drive wheel 3. The outer circumference of the drive wheel 3 abuts against the bottom end of the belt, and is linked to the movement of the belt conveyor. When the belt is running, the drive wheel 3 is driven synchronously, driving the cleaning device 7 in conjunction. No drive unit is needed to operate the device, reducing operating costs. The drive wheel 3 is connected via a positioning rod, and its outer circumference abuts against the bottom end of the belt fold. The cleaning device 7 is connected to the left and right sides of the top of the collection housing 1.

[0025] The cleaning device 7 includes an eccentric connecting rod 701, a driven connecting rod 702, a connecting plate 703, a support column 704, and a beater 705. The eccentric connecting rod 701 is connected to the positioning rod of the drive wheel 3, and connects the drive wheel 3 to the driven connecting rod 702. The rotation of the drive wheel 3 drives the cleaning device 7. The other end of the eccentric connecting rod 701 is hinged to the driven connecting rod 702, which is connected to the eccentric connecting rod 701. The driven connecting rod 702 is responsible for transmitting the rotational motion of the eccentric connecting rod 701 to the connecting plate 703, causing it to reciprocate up and down, thereby driving the entire cleaning device 7. The top end of the driven connecting rod 702 is hinged to the connecting plate 703, which is supported by the support column 704. Simultaneously, the connecting rod 706 restricts the reciprocating motion, changing it into an up-and-down swing motion, which then drives the beater 705 to move, beating and cleaning the belt to remove the adsorbed coal sludge. The length of the connecting plate 703 is [not specified in the original text]. The openings in the outer casing 1 have the same diameter. This design limits the width of the beaters 705 and restricts the beating range. Support columns 704 are connected to the bottom and front / rear ends of the connecting plate 703. The bottom ends of the support columns 704 are connected to the top of the collecting casing 1. Several beaters 705 are evenly distributed on the connecting plate 703. The beaters 705 clean the coal sludge or impurities at the conveyor belt fold by beating the bottom of the belt. Restricted by the connecting plate 703, they swing up and down. The beaters 705 on the left and right cleaning devices 7 are staggered in pairs to increase the beating area, while also allowing for coal sludge to fall. Each beater 705 has a positioning hole in the middle, and a connecting rod 706 is installed inside the positioning hole. The left and right ends of the connecting rod 706 are connected to the support columns 704. Restricted by the connecting rod 706, the beaters 705 swing and rotate in conjunction with the connecting rod 706.

[0026] The positioning rod of the drive wheel 3 is connected to a bearing housing at the contact end with the mounting plate 2, providing rotation for the drive wheel 3. When the drive wheel 3 rotates, it drives the positioning rod to rotate within the bearing housing.

[0027] In use, the device is placed at the bottom of the belt reversal point. When the belt is running, the drive wheel 3 rotates in conjunction, causing the positioning rod to rotate in the bearing seat. At the same time, the eccentric connecting rod 701 rotates, and the eccentric connecting rod 701 drives the driven connecting rod 702 to rotate, making up-down reciprocating motion. Then, the driven connecting rod 702 drives the connecting plate 703 to rotate. The connecting plate 703 is restricted by the connecting rod 706, causing the beater 705 to swing, thereby beating the belt reversal point, dislodging the coal sludge, and collecting it in the collection shell 1.

[0028] Example 2: Please refer to Figure 3 Based on Example 1, it also has the following structure:

[0029] A collection trough is provided at the front end of the outer casing 1. The collection trough collects the coal sludge that slides down from the guide plate 5 into the collection frame 6, which is then cleaned.

[0030] The collecting casing 1 is equipped with a guide plate 5, which is obliquely positioned. One end of the guide plate 5 is connected to the top of the collecting casing 1, and the other end is connected to the bottom of the collecting trough. The function of the guide plate 5 is to guide the flow of coal slurry. Through its oblique design, the coal slurry is guided to slide from the top to the bottom, ensuring that the coal slurry enters the collecting trough smoothly. The guide plate 5 is designed to prevent the coal slurry from scattering and to collect it in a concentrated manner. The obliquely positioned guide plate 5 can effectively utilize gravity to guide the coal slurry to flow in a designated direction.

[0031] The collection trough has a collection frame 6 at its open end, with the bottom end of the collection frame 6 resting on the ground. This frame is used to collect the coal sludge that slides off the guide plate 5. The collection frame 6 prevents the coal sludge from overflowing, ensuring effective collection. Resting the bottom end on the ground increases stability and prevents the frame from shifting, eliminating the need to remove the outer casing 1 for cleaning and increasing practicality.

[0032] Example 3: Please refer to Figure 1 Based on Example 1, it also has the following structure:

[0033] The drive pulley 3 has a rubber outer ring 4 at the contact end with the belt, which is fitted on the outer circumference of the drive pulley 3. The rubber outer ring 4 can prevent the drive pulley 3 from scratching or damaging the belt when it comes into contact with the belt.

[0034] Example 4: Please refer to Figure 3 Based on Example 1, it also has the following structure:

[0035] The racket shaft 705 is evenly provided with several uprights 707. The main function of the uprights 707 is to increase the contact area between the racket shaft 705 and the bottom of the belt, thereby increasing the striking effect. The uprights 707 are distributed in a geometric sequence to increase the contact area between the racket shaft 705 and the bottom of the belt.

[0036] The contact end between the column 707 and the belt is set at an angle. After the racket arm 705 rotates, the angled surface contacts the bottom end of the belt, increasing the hitting effect. After rotation, it is aligned with the cut-off end of the racket arm 705. This design allows the entire racket arm 705 and the column 707 to cooperate with each other, preventing only the cut-off end of the racket arm 705 from contacting the belt when the racket arm 705 swings.

[0037] The shaft 705 and the post 707 are made of rubber. The rubber material provides lower friction when in contact with the belt and reduces scratches or wear caused by hard metal materials.

[0038] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A self-cleaning device for a conveyor belt in an underground conveyor, disposed at the bottom end of the conveyor belt reversal point, characterized in that: The system includes a collection shell (1), a mounting plate (2), a drive wheel (3), and a cleaning device (7). The collection shell (1) is a rectangular shell with an upward opening, located at the bottom of the belt conveyor's turnaround point. The left and right sides of the collection shell (1) are respectively connected to L-shaped mounting plates (2). The vertical ends of the mounting plates (2) are respectively provided with drive wheels (3), which are connected by positioning rods. The outer circumference of the drive wheels (3) abuts against the bottom of the belt turnaround point. The top left and right sides of the collection shell (1) are respectively connected to the cleaning device (7). The cleaning device (7) includes an eccentric connecting rod (701), a driven connecting rod (702), a connecting plate (703), a support column (704), and a flapping rod (705). The eccentric connecting rod (701) is connected to the positioning rod of the drive wheel (3). The other end of the eccentric connecting rod (701) is hinged to the driven connecting rod (702). The top end of the driven connecting rod (702) is hinged to the connecting plate (703). The length of the connecting plate (703) is the same as the diameter of the opening slot of the collection shell (1). The bottom end of the connecting plate (703) is connected to the front and rear ends of the front end, respectively, and the support column is connected to the bottom end of the connecting plate (703). (704) The bottom end of the support column (704) is connected to the top end of the collection shell (1). Several beaters (705) are evenly distributed on the connecting plate (703). The beaters (705) of the cleaning devices (7) on the left and right sides are staggered in pairs and a gap is reserved between them for the coal slime to fall. The middle of each beater (705) has a positioning hole. A connecting rod (706) is provided in the positioning hole. The left and right ends of the connecting rod (706) are respectively connected to the support column (704), and the beater (705) rotates and cooperates with the connecting rod (706).

2. The self-cleaning device for an underground conveyor belt according to claim 1, characterized in that: The front end of the collection shell (1) is provided with a collection groove.

3. The self-cleaning device for an underground conveyor belt according to claim 1, characterized in that: The collection shell (1) is provided with a guide plate (5), which is obliquely arranged, with one end connected to the top of the collection shell (1) and the other end connected to the bottom of the collection tank.

4. The self-cleaning device for an underground conveyor belt according to claim 2, characterized in that: The collection trough has a collection frame (6) at its open end, and the bottom end of the collection frame (6) is located on the ground to collect the coal slurry that slides off the guide plate (5).

5. The self-cleaning device for an underground conveyor belt according to claim 1, characterized in that: The drive wheel (3) has a rubber outer ring (4) at the contact end with the belt, which is fitted on the outer circumference of the drive wheel (3).

6. The self-cleaning device for an underground conveyor belt according to claim 1, characterized in that: The drumstick (705) is provided with several columns (707) evenly arranged in a geometric sequence to increase the contact area between the drumstick (705) and the bottom of the belt.

7. A self-cleaning device for an underground conveyor belt according to claim 6, characterized in that: The contact end of the column (707) with the belt is set at an angle, and after rotation, it is on the same axis as the cut-off end of the handle (705).

8. The self-cleaning device for a conveyor belt in an underground conveyor as described in claim 1, characterized in that: The racket handle (705) and the upright (707) are made of rubber.

9. A self-cleaning device for an underground conveyor belt according to claim 1, characterized in that: The positioning rod of the drive wheel (3) is connected to the contact end of the mounting plate (2) with a bearing seat.

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